I am using a movie clip prototype (see below) to blur my navigation when the
user rolls over it. It works, but i would like for it to just blur once, then
go back to being clear, all while the mouse is over it. Any suggestions?

Thank you :0)



MovieClip.prototype.blurMC = function(){
var b:BlurFilter = new BlurFilter();
this.filters=[b];
this.onEnterFrame=function(){
this.onRollOver = function(){
this.val = true;
}
this.onRollOut = function(){
this.val = false;
}
if(this.val){
b.blurX +=1;
if(b.blurX > 4){
b.blurX = 4;
}
b.blurY = b.blurX;
this.filters = [b];
}else{
b.blurX -=1;
if(b.blurX < 0){
b.blurX = 0;
}
b.blurY = b.blurX;
this.filters=[b];
}
}
};
myNavMC.onEnterFrame = function(){
myNavMC.blurMC();
}

there are a few problems with that code. i think you'd be better served using
the following.



MovieClip.prototype.blurMC = function() {
if (!this.blurFilter) {
this.blurFilter = new BlurFilter();
this.filters = [this.blurFilter];
}
if (!this.childMC) {
mc = this.createEmptyMovieClip("child12341324MC",
this.getNextHighestDepth());
mc.b = this.blurFilter;
}
mc.b.blurX = 2;
mc.onEnterFrame = function() {
if (!this.blurOut) {
this.b.blurX += 2;
this.b.blurY = this.b.blurX;
this._parent.filters = [this.b];
if (this.b.blurX>=8) {
this.blurOut = true;
}
} else {
this.b.blurX -= 2;
this.b.blurY = b.blurX;

this._parent.filters = [b];
if (this.b.blurX<=2) {
this.b.blurY = this.b.blurX=0;
this._parent.filters = [this.b];
this.blurOut = false;
delete this.onEnterFrame;
}
}
};
};

// and use rollOver handlers to call the blurMC method:

myNavMC.onRollOver = function() {
this.blurMC();
};

the main problems with the previous code were:

1. you were (trying to) repeatedly calling blurMC (with myNavMC.onEnterFrame)
and that's not necessary. blurMC creates a loop to gradually (actually pretty
quickly) blur the movieclip.

2. the loop in blurMC never ends. for each movieclip to which it's applied
it initiates an onEnterFrame loop that never terminates.

3. the loop blurMC started was applied to the movieclip itself. if the
movieclip already had an onEnterFrame loop defined, blurMC would replace that
loop breaking your code elsewhere. (though this worked to your advantage with
your original code where myNavMC.onEnterFrame would have caused the flash
player to go into an endless loop and crash if it weren't replaced.)

wow, thanks. it is always nice to know what is wrong so that you don't do it again :0)